I'd be fencing you'd be fencing he'd be fencing we'd be fencing you'd be fencing they'd be fencing
Perfect
I should've fenced you should've fenced he should've fenced we should've fenced you should've fenced they should've fenced
V-ing perfect
I should've been fencing you should've been fencing he should've been fencing we should've been fencing you should've been fencing they should've been fencing
Negation
Simple form
I shouldn't fence you shouldn't fence he shouldn't fence we shouldn't fence you shouldn't fence they shouldn't fence
V-ing form
I shouldn't be fencing you shouldn't be fencing he shouldn't be fencing we shouldn't be fencing you shouldn't be fencing they shouldn't be fencing
Perfect
I shouldn't have fenced you shouldn't have fenced he shouldn't have fenced we shouldn't have fenced you shouldn't have fenced they shouldn't have fenced
V-ing perfect
I shouldn't have been fencing you shouldn't have been fencing he shouldn't have been fencing we shouldn't have been fencing you shouldn't have been fencing they shouldn't have been fencing
Interrogative form
Simple form
should I fence? should you fence? should he fence? should we fence? should you fence? should they fence?
V-ing form
should I be fencing? should you be fencing? should he be fencing? should we be fencing? should you be fencing? should they be fencing?
Perfect
should I have fenced? should you have fenced? should he have fenced? should we have fenced? should you have fenced? should they have fenced?
V-ing perfect
should I have been fencing? should you have been fencing? should he have been fencing? should we have been fencing? should you have been fencing? should they have been fencing?
Interro-negative form
Simple form
shouldn't I fence? shouldn't you fence? shouldn't he fence? shouldn't we fence? shouldn't you fence? shouldn't they fence?
V-ing form
shouldn't I be fencing? shouldn't you be fencing? shouldn't he be fencing? shouldn't we be fencing? shouldn't you be fencing? shouldn't they be fencing?
Perfect
shouldn't I have fenced? shouldn't you have fenced? shouldn't he have fenced? shouldn't we have fenced? shouldn't you have fenced? shouldn't they have fenced?
V-ing perfect
shouldn't I have been fencing? shouldn't you have been fencing? shouldn't he have been fencing? shouldn't we have been fencing? shouldn't you have been fencing? shouldn't they have been fencing?